Surname Reinikainen (Reinikainen 
, Рейникайнен 
) , in the entire world, is quite a rare family name. The cognomen Reinikainen is characteristic of Northern Europe, particularly Finland, where it is quite a common surname, Estonia, where it is a rare surname, and Sweden. Measured by absolute frequency, it is the most numerous in Finland, Sweden, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Reinikainen | Denmark, Finland, Sweden, United Kingdom, United States |
| Рейникайнен | Russia |
| oskari reinikainen Finnish politician (1885-1969), FI (b. 1885) |
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| jussi reinikainen Finnish veterinarian (1889-1969), FI (b. 1889) |
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pekka reinikainen Finnish politician, FI (b. 1947) |
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| kaarlo reinikainen Finnish musician (b. 1900) |
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| antti reinikainen Finnish ornithologist, biologist, teacher, FI (b. 1910) |
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| erkki reinikainen Finnish military officer, lieutenant colonel, FI (b. 1919) |
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| veikko reinikainen Finnish lawyer, FI (b. 1920) |
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| raimo reinikainen Finnish painter, FI (b. 1939) |
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| helga reinikainen Finnish painter (1940-2018), FI (b. 1940) |
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| pepi reinikainen Finnish journalist, FI (b. 1949) |
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| janne reinikainen Finnish actor and director, FI (b. 1969) |
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| matti reinikainen Finnish physician (M.D., Ph.D.), full professor of anaesthesiology and intensive care medicine (University of Eastern Finland), FI (b. 1970) |
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| tepa reinikainen Finnish athletics competitor, FI (b. 1976) |
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| emmi reinikainen Finnish association football player, FI |
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| johanna reinikainen researcher |
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Mr, Anna, Anne, Anni, Arto, Arja, Aino, Atte, Ahti, Kari, Kati, Pasi, Pepi, Piia, Rosa, Rich, Riku, Ryan, Gary, Lane, Lina, Jani, Alma, Stig, Suvi, Simo, Ms, Anu, Ari, Aki, Kai, Ron, Guy, Leo, Tea, Nea, Jari, Eva, Mari, Mila, Miro, Mika, Miia, Sara, Sari, Sami, Samu, Satu, Fay, and Josa